OK..now that you’ve memorized this table, consider what it actually means.
For example, on February 27, 2010 (my mother’s 100th birthday), the Comet Elenin was 6.042 AU from Earth (or 6.042 times the mean distance from the Earth to the Sun). The Sun was below Earth’s celestial horizon, while the comet was above -- and within ~12’ of being in a perfect alignment: from the Sun to Earth and on to Comet Elenin (which is to say that the Earth is between the Sun and Elenin). This date is also the date for an 8.8 Richter Scale Earthquake in Chili.
Then in September of that year, Elenin was closer to the Sun, but further from Earth (because the Earth was now on the opposite side of the Sun from Elenin -- apparently running in abject fear from the very threatening comet whose nucleus might be 3 to 4 thousand kilometers in diameter). There was, again another alignment, this one including Mercury (i.e. Earth, then Mercury, then the Sun, then Elenin). The alignment was primarily a Right Ascension alignment (which shows up really nicely on the orbital diagram from the NASA Horizon website ), but the Declinations (including heavily inclined Mercury) are not quite as close. Still, there was the New Zealand 7.2 Earthquake thereabouts.
Then on the Ides of March, Elenin had covered quite a lot of ground, yielding an near alignment (Sun to Earth to Comet). This is also the approximate time for the Japanese 9.0 Fukushima earthquake. [All of the above can definitely be described as earth-shaking news.]
But of course, all of these earthquakes are purely coincidence... right?
Well... if we’re going to have a real conspiracy theory... then there is no such thing as coincidences or random events... and furthermore, we will have to assume that these events are indicating something far more sinister... or alternatively more beneficent... even, perhaps, divinely inspired.
Now... given this past, it’s now time to slip into the future... with all its unknowns and speculations.
For example, 9/11/2011, is the 10th anniversary of a series of four coordinated suicide attacks upon the United States by Islamic radicalists... AND the 318th anniversary of the turning point at the Battle of Vienna (9/11/1683) in which the Holy League was victorious over the Islamic/Turkish invasion. [And yes, these dates were NOT a coincidence... and in fact, quite intentional.]
9/11/2011 is ALSO the date of Elenin’s perihelion, it's closest approach to the Sun. Coincidence?
Our old friend, Richard Hoagland (see, e.g., Iapetus) finds that a bit of a stretch... as does Project Camelot -- both of whom can spend hours on the subject!
Meanwhile, roughly two weeks later, we have yet another alignment: one involving the Earth, Comet Elenin, the Sun and Mercury. In fact, quite a good one, particularly between Elenin and Mercury.
This 9/27/2011 date is important in that IF a major earthquake occurs on this date, it's really going to get MY attention... and perhaps the attention of others
The next two dates are... well... a bit more questionable. In one case, the Comet allegedly "crosses the Earth’s orbit"... at least in the two dimensional diagram . And then the Earth "crosses the Comet’s orbit at the previous point". However, in three dimensions, there is this nasty dimension of height, and these claims of "crossings” may be seriously misleading. Much has been made by some researchers, but the evidence does not appear to be strong for anything notable.
On the other hand, the next date... the Prophetic 11/11/11 (drum roll please; cue the long-stemmed trumpets)... 11/11/11 does indeed have some serious possibilities... and assuming we ignore the "20" in front of the last "11". In this case, there is an alignment of Venus-Mercury-Earth-Comet Elenin. This might also be a coincidence, but as Hoagland/Project Camelot (in the video linked above) have pointed out: such “coincidences” may be less random events and co-inciding ones. Something definitely seems to be in the works... and quite possibly, these facts are well understood by governments as well as eccentric speculators such as me and thee.
Recently, there has also been considerable "hype" about NASA talking to its people and reminding them of the supposedly long-standing NASA policy of NASA employees, associates, and cronies... specifically that of being prepared for disasters, having emergency preparedness kits at hand, and knowing what to do in the event of a disaster... the up close and personal kind. As Gerald Celente would have phrased it (albeit with a lot more eloquence and enthusiastic passion): everyone is going to want to have the 3 G’s available, i.e., Guns, Gold, and Getaway plans at their disposal. [I keep thinking 4 G's... to include Girls... but that's me.]
Then there’s FEMA, another one of those radical, leftist, fear-mongering groups. On June 9, 2011, FEMA issued a joint press release with the FCC [Federal Communications Conglomerate... actually Commission... beholden to Corporate interests] in which there was to be a “Nationwide Test Of The Emergency Alert System”... said test which, prophetically, was scheduled for 11/09/11.
Hoagland, et al found this coincidence a bit much as well. After all, this is the FIRST test of the Emergency Alert System (EAS), and for it to be promulgated well ahead of time... shouting from the roof tops that 11/9/11 is a day to pay attention... is very, very... curious.
[Hoagland, et al, did not, however, point out the potentially good news that any Emergency Alert System Incident, would inevitably become known thereafter as the Big EASI.]
There is also this bit:
"As the federal, state, tribal, territorial and local governments prepare for and test their capabilities [didn't know we had "tribal governments," eh?], this event serves as a reminder that everyone should establish an emergency preparedness kit and emergency plan for themselves, their families, communities, and businesses. Anyone can visit www.Ready.gov for more information about how to prepare for and stay informed about what to do in the event of an actual emergency." [emphasis added]
It’s hard to imagine how anyone could get ready for gov... or even assume there was ever a ready gov... but then again, I probably should look up the web link before getting too carried away.
Up to this point, we have been concentrating on Elenin... such is the power of hype.
However, this smaller, 400 meter wide asteroid has generated a bit of interest in and of itself... not to mention all those strange and bewildering coincidences of dates.
To being with, we have to point out that 2005 YU55 is a local boy, wandering purposely between the orbits of Mars and Venus for lo these many years... and occasionally, with respect to the Earth, dropping by for tea. YU, as his friends call him, is one of the poster boys of the Near-Earth-Object NASA program.
The relevant news is that YU will pass within 0.85 lunar distances from Earth on 11/8/11 (11/9/11 in some locales; check your local listings). The asteroid should attain a visual brightness of 11th magnitude [another friggin’ coincidence?], and be “easily visible to observers in the northern and southern hemispheres” [the latter which pretty well encompasses most of the Earth]. Furthermore:
"The closest approach to Earth and the Moon will be respectively 0.00217 AU and 0.00160 AU on 2011 November 8 at 23:28 and November 9 at 07:13 UT." 
The fact that 2005 YU55 is doing its thing with respect to Earth within days of the Elenin bit... is quite possibly just a bit too much.
Other fun dates include June 9, 2011 (The FEMA press release) when YU55, Mercury, Venus, and Mars were in approximate alignment; there is a repeat of this same alignment just prior to the July 1st Solar Eclipse; October 17th (see Elenin's Table above) with an alignment of Earth, YU55 and Mercury (and almost Venus); and on the really relevant date of 11/8-9/11 when Earth, Mercury, and Venus are in a near perfect alignment.
It might be worth noting that YU55 has an orbital period of 1.22 years, a low inclination of 0.5131 degrees and is due to pass even closer to Venus on 17 January 2029.  YU gets around, the rascal!
The latter date is of course only a few months prior to Apophis  giving Earth a near fly-by on... of all of the friggin’ dates... Friday, the 13th of April, 2029. Geez!
You know... it just might be time to check out www.Ready.gov... and perhaps upping the ante a bit with a month’s worth of supplies (as opposed to 3 days... and thus allowing for quite a bit of additional time for DC to actually get the word... particularly on a weekend).
 Obtained from http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=C/2010%20X1 -- click on “Orbit Diagram”, second line below name of object (e.g. Elenin)... and then play with it.
 Obtained from http://ssd.jpl.nasa.gov/ ... check "ephemeris".
 Obtained from http://www.fourmilab.ch/cgi-bin/Solar/. Just fill in the date and update. (The “Equal” orbit selection makes things a bit easier to see for the inner planets.)
 UT is not University of Texas time, but “Universal Time”, aka Greenwich Mean Time (GMT), the latter unrelated to Thames Nasty Time (TNT).
[5 ] http://en.wikipedia.org/wiki/2005_YU55
 "In all analyses of trends, cycles, and so forth, there is always the possibility of a Wild Card. This is the case where all bets are off... and every trend is disrupted. The best example might be Apophis... scheduled for a 2029 event (curiously, Friday, April 13th of that year).
"In Egyptian myth, Apophis was the ancient spirit of evil and destruction, a demon that was determined to plunge the world into eternal darkness." [Read the link... trust me.]
Okay... you got my attention. [Who names these asteroids, anyway?]
"In the case of the asteroid, it has an inclination of ~40 degrees, is 400 meters wide (four football field lengths)... and an impact -- were it to hit the Earth -- that would result in a release of energy roughly 100,000 times the Hiroshima bomb. Can you imagine giving your all in a war, only to have much of your success nullified by just such an asteroid?
“The analysis of Apophis previews situations likely to be encountered with NEAs yet to be discovered: a close approach that is not dangerous [?]; nonetheless close enough to obscure the proximity and the danger of a later approach (like Apophis in 2036).” In fact, the first fly by might amplify the trajectory prediction uncertainties caused by difficult-to-observe physical characteristics interacting with solar radiation as well as other factors.
"Right now, Apophis is expected to approach within 15,000 miles from the Earth’s surface... or about 6% of the distance to the Moon." [Taken from World War III... and Other Fun Prognostications.] This distance is a lot closer than 2005 YU55.